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|dc.identifier.citation||Journal of Bone and Joint Surgery-British Volume, 2006; 88B(1):44-48||en|
|dc.description.abstract||Twenty patients underwent simultaneous bilateral medial unicompartmental knee arthroplasty. Pre-operative hip-knee-ankle alignment and valgus stress radiographs were used to plan the desired post-operative alignment of the limb in accordance with established principles for unicompartmental arthroplasty. In each patient the planned alignment was the same for both knees. Overall, the mean planned post-operative alignment was to 2.3° of varus (0° to 5°). The side and starting order of surgery were randomised, using conventional instrumentation for one knee and computer-assisted surgery for the opposite side. The mean variation between the pre-operative plan and the achieved correction in the navigated and the non-navigated limb was 0.9° (sd 1.1; 0° to 4°) and 2.8° (sd 1.4; 1° to 7°), respectively. Using the Wilcoxon signed rank test, we found the difference in variation statistically significant (p < 0.001). Assessment of lower limb alignment in the non-navigated group revealed that 12 (60%) were within ± 2° of the pre-operative plan, compared to 17 (87%) of the navigated cases. Computer-assisted surgery significantly improves the post-operative alignment of medial unicompartmental knee arthroplasty compared to conventional techniques in patients undergoing bilateral simultaneous arthroplasty. Improved alignment after arthroplasty is associated with better function and increased longevity.||en|
|dc.publisher||British Editorial Soc Bone Joint Surgery||en|
|dc.rights||© 2006 British Editorial Society of Bone and Joint Surgery||en|
|dc.subject||Ankle Joint; Hip Joint; Knee Joint; Humans; Bone Malalignment; Osteoarthritis, Knee; Treatment Outcome; Preoperative Care; Surgery, Computer-Assisted; Arthroplasty, Replacement, Knee; Prospective Studies; Aged; Middle Aged; Female; Male||en|
|dc.title||Limb alignment in computer-assisted minimally-invasive unicompartmental knee replacement||en|
|pubs.library.collection||Centre for Automotive Safety Research publications||en|
|Appears in Collections:||Centre for Automotive Safety Research publications|
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